ui: import AnimatedSwipeDismiss code from Brandon McAnsh

Source: https://gist.github.com/bmc08gt/fca95db3bf9fcf255d76f03ec10ea3f9
Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

app/build.gradle

@@ -29,7 +29,7 @@ android {
 
 tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
     kotlinOptions {
-        freeCompilerArgs += ["-Xallow-jvm-ir-dependencies", "-Xskip-prerelease-check"]
+        freeCompilerArgs += ["-Xallow-jvm-ir-dependencies", "-Xskip-prerelease-check", "-Xopt-in=kotlin.RequiresOptIn"]
     }
 }
 

app/src/main/java/dev/msfjarvis/todo/ui/AnimatedSwipeDismiss.kt

@@ -0,0 +1,58 @@
+package dev.msfjarvis.todo.ui
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.EnterTransition
+import androidx.compose.animation.ExitTransition
+import androidx.compose.animation.ExperimentalAnimationApi
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.material.DismissDirection
+import androidx.compose.material.DismissValue
+import androidx.compose.material.ExperimentalMaterialApi
+import androidx.compose.material.SwipeToDismiss
+import androidx.compose.material.rememberDismissState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.onCommit
+import androidx.compose.ui.Modifier
+
+@OptIn(ExperimentalAnimationApi::class, ExperimentalMaterialApi::class)
+@Composable
+fun <T> AnimatedSwipeDismiss(
+  modifier: Modifier = Modifier,
+  item: T,
+  background: @Composable (isDismissed: Boolean) -> Unit,
+  content: @Composable (isDismissed: Boolean) -> Unit,
+  directions: Set<DismissDirection> = setOf(DismissDirection.EndToStart),
+  enter: EnterTransition = expandVertically(),
+  exit: ExitTransition = shrinkVertically(
+    animSpec = tween(
+      durationMillis = 500,
+    )
+  ),
+  onDismiss: (T) -> Unit
+) {
+  val dismissState = rememberDismissState()
+  val isDismissed = dismissState.isDismissed(DismissDirection.EndToStart)
+
+  onCommit(dismissState.value) {
+    if (dismissState.value == DismissValue.DismissedToStart) {
+      onDismiss(item)
+    }
+  }
+
+  AnimatedVisibility(
+    modifier = modifier,
+    visible = !isDismissed,
+    enter = enter,
+    exit = exit
+  ) {
+    SwipeToDismiss(
+      modifier = modifier,
+      state = dismissState,
+      directions = directions,
+      background = { background(isDismissed) },
+      dismissContent = { content(isDismissed) }
+    )
+  }
+}

app/src/main/java/dev/msfjarvis/todo/ui/ListContent.kt

@@ -0,0 +1,48 @@
+package dev.msfjarvis.todo.ui
+
+import androidx.compose.animation.animate
+import androidx.compose.foundation.Box
+import androidx.compose.foundation.ContentGravity
+import androidx.compose.foundation.Icon
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumnFor
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun <T> ListContent(
+  innerPadding: PaddingValues,
+  items: List<T>,
+  onSwipe: (T) -> Unit,
+  onClick: (T) -> Unit,
+  modifier: Modifier = Modifier,
+) {
+  LazyColumnFor(
+    modifier = modifier.padding(innerPadding),
+    items = items,
+  ) { item ->
+    AnimatedSwipeDismiss(
+      item = item,
+      background = { isDismissed ->
+        Box(
+          modifier = Modifier.fillMaxSize(),
+          backgroundColor = Color.Red,
+          paddingStart = 20.dp,
+          paddingEnd = 20.dp,
+          gravity = ContentGravity.CenterEnd
+        ) {
+          val alpha = animate(if (isDismissed) 0f else 1f)
+          Icon(Icons.Filled.Delete, tint = Color.White.copy(alpha = alpha))
+        }
+      },
+      content = { /* your item cell (feed your on click here) */ },
+      onDismiss = { onSwipe(it) }
+    )
+  }
+}